Troubleshooting By Symptom - Canon MX882 Service Manual

MX880 series
1. TROUBLESHOOTING

1-1. Troubleshooting by Symptom

Faulty The power does not turn on.
operation The power turns off
immediately after power-on.
A strange noise occurs.
The LCD does not display
properly.
A portion of the LCD is not
displayed.
The display flickers.
Paper feed problems (multi-
feeding, skewed feeding, no
feeding).
Symptom
(1) Confirm cable connection:
=> No incomplete connection, cable breakage, or cable
(2) Replace the following item(s):
(1) Examine and remove any foreign material from the drive
(2) Replace the following item(s):
(1) Confirm cable connection:
=> No incomplete connection, cable breakage, or cable
(2) Replace the following item(s):
(1) Examine and remove any foreign material from the
(2) Confirm that the paper guides are set properly.
(3) Confirm the PF rear cover and the cassette conditions.
(4) Confirm cable connection:
=> No incomplete connection, cable breakage, or cable
(5) Replace the following item(s):
- PCI DC harness ass'y
caught in units
- Logic board ass'y
- AC adapter
- PCI DC harness ass'y
portions.
- The part generating the strange noise
- Purge drive system unit
- LCD cable
caught in units
- LCD ass'y
- LCD cable
- Panel board ass'y
- Logic board ass'y
following parts:
- ASF unit
- PE sensor
- Paper guide unit
- Pressure roller unit
- Spur unit
- PE sensor cable
- Paper feed relay harness ass'y
caught in units
- ASF unit (for paper feeding error from the rear tray)
- Pick-up arm unit (for paper feeding error from the cassette)
- PE sensor board ass'y
- Pressure roller unit
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